1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68 | /* identify the Entry Point */
ENTRY(_startup)
flash : ORIGIN = 0, LENGTH = 248K /* FLASH ROM */
ram : ORIGIN = 0x40000000, LENGTH = 16K /* free RAM area */
}
/* define a global symbol _stack_end */
_stack_end = 0x40000000 + 16384 - 4;
/* now define the output sections */
SECTIONS
{
. = 0; /* set location counter to address zero */
startup : { *(.startup)} >flash /* the startup code goes into FLASH */
.text : /* collect all sections that should go into FLASH after startup */
{
*(.text) /* all .text sections (code) */
*(.rodata) /* all .rodata sections (constants, strings, etc.) */
*(.rodata*) /* all .rodata* sections (constants, strings, etc.) */
*(.glue_7) /* all .glue_7 sections (no idea what these are) */
*(.glue_7t) /* all .glue_7t sections (no idea what these are) */
_etext = .; /* define a global symbol _etext just after the last code byte */
} >flash /* put all the above into FLASH */
.ctors :
{
PROVIDE(__ctors_start__ = .);
KEEP(*(SORT(.ctors.*)))
KEEP(*(.ctors))
PROVIDE(__ctors_end__ = .);
} >FLASH
.dtors :
{
PROVIDE(__dtors_start__ = .);
KEEP(*(SORT(.dtors.*)))
KEEP(*(.dtors))
PROVIDE(__dtors_end__ = .);
} >FLASH
.data : /* collect all initialized .data sections that go into RAM */
{
_data = .; /* create a global symbol marking the start of the .data section */
*(.data) /* all .data sections */
_edata = .; /* define a global symbol marking the end of the .data section */
} >ram AT >flash /* put all the above into RAM (but load the LMA copy into FLASH) */
.bss : /* collect all uninitialized .bss sections that go into RAM */
{
_bss_start = .; /* define a global symbol marking the start of the .bss section */
*(.bss) /* all .bss sections */
} >ram /* put all the above in RAM (it will be cleared in the startup code */
. = ALIGN(4); /* advance location counter to the next 32-bit boundary */
}
. = ALIGN(4);
_end = .;
_bss_end__ = . ; __bss_end__ = . ; __end__ = . ;
PROVIDE (end = .);
|